Re: Making toroids

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "Jim Lux by way of Terry Fritz <twftesla-at-qwest-dot-net>" <jimlux-at-earthlink-dot-net>

Metal Spinning....

Use the wood lathe to make a form (half torus)
Use the wood lathe to spin sheet metal while you apply some force and and
form it onto the form.
There are books around (most >50 yrs old) that talk about how to do this,
and I'm sure there are some list members who can give you all sorts of
advice.

The other approach, if you have a suitable tubing bender, is to bend tubing
into a ring, then weld it.

Finally, if you build a toroid out of a stack of smaller rings, it works.
If you looked at a cross section of one of the toroid "tubes", it would be a
circle.  Now, approximate that circle with a bunch of circles of smaller
diameter.

----- Original Message -----
From: "Tesla list" <tesla-at-pupman-dot-com>
To: <tesla-at-pupman-dot-com>
Sent: Friday, January 04, 2002 5:04 PM
Subject: Making toroids


> Original poster: "tmoore by way of Terry Fritz <twftesla-at-qwest-dot-net>"
<tmoore-at-erie-dot-net>
>
>    Hi everyone I have been trying to make a toroid made out of aluminum or
> some thing similar. I have access to my schools wood and metal shops,  so
> what I planed on doing is to take a block of wood and spin it down on the
> wood lathe in to a toroid shape.  After I was finished doing that I was
> going to make a mold and cast it in the foundry.  That should work out
> pretty well, but the thing is that it might be heavy and the surface might
> not be perfect so I will have to buff it up a ton.  Some of the machines I
> have access to are some milling machines, 1/2 a dozen metal and 1 wood
> lathe,  a mig and a arc welder, a band saw, a planer, a jointer, a table
> saw, a power miter box and a foundry as well as a few others.  So if any
of
> you have tips and suggestions on how I could go about fabricating a good
> toroid I am all ears.  Thank you very much.
>
>
> Sincerely,
> Nolan Moore
>
>
>